Hi,

I've been using spoon calipers with legend rotors on my itr for ~10 years.




On my 240sx, I'm using forged superlites with floating hat rotors (defsport / skullworks kit).






For my track car, I'm looking to lose a little weight in that area, and am interested in possibly getting wilwoods with floating hat rotors.
(I'm using itr 5lug on this car also.)

Is anyone using the fastbrakes itr kit?

Or something else?


Requirements:

Lightweight (preferably forged)
Floating hat rotors
4 piston calipers
Fit under 15" wheels
Equal to or better than itr setup
Lightweight
Lightweight
Lightweight

 

NOBODY has upgraded to anything other than spoon to save weight?!

 

IMO, Stoptech is the only aftermarket kit worth investing. Those guys really know what they are doing. Unlike Wilwood (and all others), you don't need to install adjustable proportioning system to maintain or improve front/rear bias. They have a kit for the R.

Spoon is the only other caliper specifically developed for the R.

 

What is it that you are truly trying to accomplish? Is there a specific series you are running or is this just a fun HPDE car? I think the spoon caliper is pretty light, so if you pair that with a 2 piece floating rotor it would be pretty light. Keep in mind that brakes are a heat sink and that they do need a certain amount of mass to maintain a level of reliability and performance.

Probably easier to shave weight elsewhere. Lighter tires, wheels, etc.

 

Stoptech used to make a floating rotor as a stock replacment for the ITR called the DRK (no longer in production). Maybe you can still find them around as new-old-stock.

http://www.google.com/webhp?rlz=1C1G...=1478&bih=1043

 

yah $400 for rotors gonna have to pass on that idea

 

What's your track car?
I think the Spoon is really hard to beat as far as weight.

 

That kit doesn't fit with the OEM 15's does it? I'm guessing no way in hell but I've never seen anybody run this.

 

Well they're real floating rotors with curved vanes and Centric's power alloy. Not just your typical 2-piece rotors.

They are the exact same dimensions as stock ITR rotors. DRK means "Direct Replacment Kit". Honestly I don't know why they weren't that popular. Probably because Stoptech doesn't do much advertising and their website isn't much good for finding products. These kits have been discontinued for a while now, but they're still out there.

Here is the 4x100 version of the same kit using the stock Integra knuckle and spoon caliper (Thicker rotor requires Spoon or ITR calipers).

https://honda-tech.com/forums/road-racing-autocross-time-attack-19/2-piece-rotor-2271814/



^That's about as cool as it gets for running 15" wheels.

 

The Fastbrake 4 piston kit for the ITR is lighter than the Spoon by just over 1 lb (4 lbs vs 5 lbs) and 9.5 lbs lighter than stock. They cost half as much as the Spoon calipers and fit 15" wheels.

 

Thanks Marc.

Do you run this on your itr?


94eg, thank you for the link.

Jdmspoon,
I'm trying to accomplish losing unsprung weight without sacrificing braking performance. All under 15" wheels. And I've already got te37 track wheels on Hoosiers, so no weight to be saved there.
This is my autox car (SMF), but I do hpde's as well.
I have already gone through and lightened the rest of the car about to the limits of the rules.


Wai, track car:



Yes itr everything and then some...

 

ooo EF!
Are you running 5-lug? I assume you are since you said everything is ITR. Some people from JDM land actually switched back to 4-lug on their 98spec when their cars got light enough. If you're running autocross, time attack or HPDE, 4-lug could be a good option to save unsprung weight.

 

Wilwood/Fastbrakes products aren't floating rotors and the calipers are not specifically sized to the ITR brake system (wilwood only makes a couple piston sizes). You do run the risk of increasing front bias (= longer stopping distances) without installing an adjustable proportioning valve. And Hondas require two valves because of their dual-channel brake system. This is mentioned in the Wilwood brake kit instructions. Fastbrakes makes no mention of bias at all.

BTW: Remember Black R already has Spoon calipers.

 

Ya I luv EF.

I have considered going back to 4lug to save weight, but would rather keep 5lug with lightening options such as lighter calipers and rotors + chromoly custom knuckles.

94eg, I do have spoon calipers - on my other car.
I'm looking to upgrade on this car.

The pro's for wilwood:

Inexpensive
Lightweight
Readily available
Pads are cheaper for the same compounds I use
Rotors last longer and are cheap
(* these savings are due to economy of scale because so many circle track cars use wilwood stuff)

As for the brake bias issue, there really isn't one IMO.
There are several sizes of wilwood calipers - each with options for piston size.
A little math, and I'm close enough that I don't have to worry about bias - easily managed by staggered compounds at that point.

Don't get me wrong, I don't like wilwood that much; I find their quality to be lacking, but I want the cheapest solution that will serve its intended purpose.

 

Big update! Finally ran my first pair of rotor hats and will have them on a car ASAP for real world testing. Total rotor weight is roughly 10lbs.

 

Neat idea and interesting to see how it turns out. Complete waste of money though.

I am interested in seeing your thoughts on it though. Sub'd

 

This is the positive content that keeps me coming back to Hater-Tech...

20% savings in unsprung weight. Also the ability to run the Porsche brembos on a 5-lug car. Oh yeah, real brake cooling and a 100% American manufactured product made from 100% American made materials, something that's pretty rare in the Honda aftermarket world.

Anyway, I'll post complete setup pics when I get them on car.

 

Don't cry when you hear the truth. It's not needed, especially for 99% of the people who read this thread. That's a fact. I'm not a stranger to tracking cars either.

Don't get all bent out of shape from facts. Not a good look.

I still find it interesting. I'll never do it, but still interesting.

Edit: I have a 1989 240SX. Which one do you have?

 

The same Porsche Brembos that work on the Honed kit for 4 lug cars?

 

Yes, exactly. Those mini rotors are real boat anchors!

 

Lmao...

 

Are these same specs as the Mini 294mm 4x100 22mm thick or maybe bit thicker rotors?

 

Also, in terms of wheel fitment over the Porsche caliper with 294 mini cooper disk, Konig Countergram in 15x9 35ET with 10mm spacer or 15x8 25ET with no spacer will fit perfectly. The Dekagram 15x8 25ET no spacer needed to fit.